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Geopolymer-containing cement paste-based grouting material suitable for high-ground-temperature environment and preparation method thereof

A geopolymer and grouting material technology, which is applied in the field of geopolymer-containing cement slurry-based grouting materials and its preparation in high ground temperature environments, can solve the impact of grouting stones on mechanical properties and durability, chemical grout is toxic and harmful, Deteriorating the construction work environment and other problems, achieving the effect of reducing urban environmental pollution, promoting rapid precipitation, and low price

Pending Publication Date: 2022-02-01
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High ground temperature will deteriorate the construction working environment, and the selection of grouting materials is different from normal temperature rock and soil construction, which will have a great impact on the mechanical properties and durability of grouting stones
[0003] Moreover, due to the toxic and harmful problems of the currently used chemical slurry, and the large amount of slurry used in the actual project causes high cost, large consumption of raw materials, and prominent environmental problems, it cannot be coordinated with green mining and green construction

Method used

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  • Geopolymer-containing cement paste-based grouting material suitable for high-ground-temperature environment and preparation method thereof
  • Geopolymer-containing cement paste-based grouting material suitable for high-ground-temperature environment and preparation method thereof
  • Geopolymer-containing cement paste-based grouting material suitable for high-ground-temperature environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high ground temperature environment containing geopolymer cement slurry-based grouting material provided in this embodiment is specifically: take 1000ml of water, 960g of cement, 40g of metakaolin and 1.2g of sodium hydroxide, and mix ordinary silicate Pour the cement and metakaolin into the powder mixer and stir for 5-15 minutes to ensure uniform mixing.

[0033] Pour sodium hydroxide into water, stir well, stand still for 12 hours, stir again, and add mixed ordinary Portland cement and metakaolin, after stirring for 5 minutes, stop stirring for 2 minutes, and then stir for 5 minutes to make grouting material.

Embodiment 2

[0035] A kind of geopolymer-containing cement slurry-based grouting material provided in this embodiment is specifically: take 1000ml of water, 920g of ordinary Portland cement, 80g of metakaolin and 1.2g of sodium hydroxide, and Ordinary Portland cement and metakaolin are poured into the powder mixer and stirred for 5-15 minutes to ensure uniform mixing.

[0036] Pour sodium hydroxide into water, stir well, stand still for 12 hours, stir again, and add mixed ordinary Portland cement and metakaolin, after stirring for 5 minutes, stop stirring for 2 minutes, and then stir for 5 minutes to make grouting material.

Embodiment 3

[0038] A high ground temperature environment containing geopolymer cement slurry-based grouting material provided in this embodiment is specifically: take 1000ml of water, 880g of cement, 120g of metakaolin and 1.2g of sodium hydroxide, and mix ordinary silicate Pour the cement and metakaolin into the powder mixer and stir for 5-15 minutes to ensure uniform mixing.

[0039] Pour sodium hydroxide into water, stir well, stand still for 12 hours, stir again, and add mixed ordinary Portland cement and metakaolin, after stirring for 5 minutes, stop stirring for 2 minutes, and then stir for 5 minutes to make grouting material.

[0040] For verifying the characteristics of the grouting material prepared in the present invention, carry out following test, in following test, slurry refers to the grouting material that comparative example and each embodiment prepare, concrete test is as follows:

[0041] 1. Determination of slurry stability - water separation rate test:

[0042] Pour t...

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Abstract

The invention discloses a geopolymer-containing cement paste-based grouting material suitable for a high ground temperature environment. The geopolymer-containing cement paste-based grouting material is prepared from the following raw materials in parts by weight: 100 parts of a solid material, 0.12 part of sodium hydroxide and water, wherein the weight part of the water is as follows: the water-cement ratio is 1: 1, and the ash is the weight part of the solid material; the water-cement ratio represents the ratio of the parts by weight of water to the parts by weight of ash. The grouting material is prepared from conventional Portland cement under the condition that no additive is added, is suitable for a high-ground-temperature environment, achieves the purposes of reducing ecological damage and environmental pollution, and can meet the requirements of wide raw material sources and cost reduction.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering and civil engineering, and in particular relates to a geopolymer-containing cement slurry-based grouting material suitable for high ground temperature environments and a preparation method thereof. Background technique [0002] With the rapid advancement of infrastructure construction, the geological environment faced by tunnel engineering is becoming more and more complex, and the problem of high ground temperature is more prominent. High ground temperature will deteriorate the construction working environment, and the selection of grouting materials is different from normal temperature rock and soil construction, which will have a great impact on the mechanical properties and durability of grouting stones. [0003] Moreover, due to the toxic and harmful problems of the currently used chemical slurry, and the large amount of slurry used in the actual project results in high cost,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/70
CPCC04B28/04C04B12/005C04B2111/70C04B22/062
Inventor 翟康博余永强刘永胜卓越徐海廷高广义范利丹张纪云徐启鹏李广跃王卓王树仁孙亮黎建军谷晴天徐伟徐峰彭天祥
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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